Pneumatic tire.



'1mm 'il SH01/MM35 Panama July 20, 1909.

UNITED-STATES "PATENTOFFIGE *ROBERT J. auras, or BALTIMORE',- MARYLAND.

V rnnmra'rrc man.

In Y

VBe 1t known that I, Ronn'r JAMES Burns,

.citizen of the lUnited .States of America',` 'residing at:`-Balti1nore, .Maryland, '(post'folicef 'address 1050 North Broadway,) i have. in?.

vented certain new and useful Improvements in Pneumatic Tires, of which the following is a specification.

Specification of Lettere Patent. .inundanmea september 1o, 190s. sei-n1 No. wana This invention relatesto' pneumatic tires:

. of the .type generally referred to as prof-- tected, armored, and has as an object the yproduction of such a tire, the tube ofjwhich isfconveniently 4accessible for, mending and which, at the same-time, is .amply protected against puncture and armed to prevent skid-4 durg; and may be applied tof'any wheel.

e tire consists Aofa tube of rubber in-- closed Within a cover composed of alternate layers-of canvas and l eathejr. Covering the tread of the tire isv` a-rin '[called a tread eriphery of the tire.

,Another ring, also o leather' strips, ealledato.ffthe. rim dividing 'thegri ring into two"- 40v circular. strips, or rings. 'T

11a-ring, is secured to the back of the tire; e" tsilmer-periphery, to lfurnish a grip f T e whole is covered with'ca'nvr I leather in successive layers-.

tread y'1s protected byfastrip of sheet metal flanged atyitsV4 ed es to" inclose the tread,'and

The

ith their heads protruding.

.iiblt up 0f flat ban s4 of leatherjen 1 sil ingthe outer tolgether, formin structurean of rotation from'the outside of the air sectional i variety, may be appliedto any felly having a vfiat periphery, and has tvvo flanges which separate to admlt the grip Ae rim is ofl the ring. The flanges and grip are perforated transversely and bolts are thetwo flanges andthe grlp, holding t e.

sections of the grip ring vtogether and securin the tire to the wheel.

Re erring to the accompanying draw-- ings-Figure 1 is a transverse cross-section of the vtire and rim, Fig. 2 isa fragmentary side viewwith a part of the cover removed.

The inner tube 1 of the tire isof the usualtype composed of rubber. Thisftube iscovy,ered with a layer of canvas @rover-.which is passed throu h.

Patented Jiu-y '20', i909.

4 canvas 4I. The tread is protected by a thick ring bof leather composed of a series of -flat bands, tlxer'st of which is cemented to the canvas 4, the others ofwhich are placed one A upon the other'in turn. This rinor is tapered 1n cross-section from av width slightly less than the diameter of the layer 4to the'desired Widthof tread, in this case somewhat less than Vthe inside diameter of the inner tube. To'theinner periphery of the `tire is attached the grip ring 6. This is also composed of a seri of layers of leather bands superimposed one upon the other, the inner bandbe 'cemented ,to the canvas layer 4 andthe ers being su rimposed one upon the :other and attache to each other. A

covering 7 of canvas incloses thev Whole,

resting on the canvas coating `y4 'at the sides and cofverin the gri ung. Outsi e of this 1s a complete covering of esther 8 and another layer of canvas 9. At the sides the cover,- meaning the ortion outside the'rubber tubefl, is sewedt rough and through from the canvas layer 9 to the canvas layer 2. These seams follow. the lines indicated at 104 on Fig. 2. TheI grip ring .isalso sewed through and through as shown. It 'will'be noted that the different layers of tire are firmly secured to' each other at/the sides, forming a peripheral pocket on the tread. of the tire to inclose the tread ring 5.

lOver the whole is an external covering 11 of leather. This is rcut away at 27 to yprovide for the removal of the surplus material and the slits are closed by .fastening their edges'to the canvas layer4 9 by means of '-iivets`28. The tread is protected by a peripheral :strip A12 of met-a bent-up for a shortdistance2 ossibly three-quarters of an inch, at-each 51de, secured by means of spikes 13, the heads of which 14 are left protruding,as shown, to form arough surface to `lgreverltllriddin i The cover'is ividedyat the vrear `c :entral'ly in the plane 'of revolution @1115, that the gripping ring insteadgoflbeing 1n faet Aasing e rlng is Yseparated ,tof form two rings 16 'and 17. The rinZl withwhich th1s' t 1r e is used is referablypitheftype known sectional; z, e'., one-flange 221s. removable; The gri 4ring is percedtransversely at points 8,- 'a'equallyfj spaced longitudinally thereof, and "registering-holes 19 areY yformed los pass through the registering holes and serve to secure the tire to the rim.v

` It will be noted that the inner face 241e of the riin is tlat so that the rim and tire may be placed on any telly having a flat outer circumference and `maybe easily set npand renimfed. Radial bolts 25 passing through the rim 21A and telly 2G hold-the former in place. To pnt they parts in their operative relationf the cover is opened atl, the deflated tnbe l is placed therein, the sections 16. and '1T and thel grip ring are pressed together and `seatedin the rinl rsection 21. tached section of the riin is non' placed in position over the grip ring and this section and the tire are moved until thebolt holes register; The bolts 20 are then ,inserted and the nnts tightened thereon. 'may be now inflated at. the will ot the' operator.y l

Haring thus described my invention, tvhat l' claim andy desirev to secure by Letters Patent is: i

l; A tire consisting of'a tube and a cover, a tread ring and a ygrip ring secured to the cover, layers of .nniterialr covering the tire, the tread and the grip, arc' innous nletal Sheet covering the entire tread, andspilie's The tire' l l l l The dewhich is rigidly seenred to a telly7 While ring on the tread side of the cover to be co1n-v y posed of cireumferentialI'layers ot leather, and an inclosing easing covering the tread ring, the cover tube and the grip ring and split peripherally onr the interior, and a metal rim composed ot two parts, one of the other is removable and telesc'oped into the tilted part, and means for securing the two parts together4 and at lthe same time drawing the vSeparated edges.V of the cover tube, the grip ring and 'the casing` as Well as the separate parts of the riin, together and securing `the whole.

Signed by me' at this 31st day ot'J-ftngnst 1008.

' ROBERT J. RUTZS;

Baltimore7 Maryland. 

